On May 18, 1980, Mount St. Helens erupted violently after 2 months of intense earthquake activity and intermittent, relatively weak eruptions, causing the worst volcanic disaster in the recorded history of the United States. Eruptions of Mount St. Helens: Past, Present, and Future
features many color photos and details this climactic eruption, including the debris avalanche, ash eruption and fallout, mudflows and floods, and the impact and aftermath of this cataclysmic event.
Features: Paperback. 1990. 56 pp. Many color photos. 8.5 x 11 inches.